Mozilla Foundation Security Advisory 2006-76

XSS using outer window's Function object

Announced

December 19, 2006

Reporter

moz_bug_r_a4

Impact

High

Products

Firefox

Fixed in

Firefox 2.0.0.1

Description

moz_bug_r_a4 demonstrated that the Function prototype regression
described in bug 355161 could be exploited to bypass the protections
against cross site script (XSS) injection, which could be used to
steal credentials or sensitive data from arbitrary sites or
perform destructive actions on behalf of a logged-in user.

This vulnerability is a regression introduced in Firefox 2.0,
Firefox 1.5 releases are unaffected.